25755012277 has 2 divisors, whose sum is σ = 25755012278. Its totient is φ = 25755012276.

The previous prime is 25755012263. The next prime is 25755012307. The reversal of 25755012277 is 77221055752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25239994641 + 515017636 = 158871^2 + 22694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25755012277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25755012247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12877506138 + 12877506139.

It is an arithmetic number, because the mean of its divisors is an integer number (12877506139).

Almost surely, 2^25755012277 is an apocalyptic number.

It is an amenable number.

25755012277 is a deficient number, since it is larger than the sum of its proper divisors (1).

25755012277 is an equidigital number, since it uses as much as digits as its factorization.

25755012277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 343000, while the sum is 43.

The spelling of 25755012277 in words is "twenty-five billion, seven hundred fifty-five million, twelve thousand, two hundred seventy-seven".